Not really.  We had a user logon to a z/Linux guest and hit <PA1>
instead of <PA2> and left it sit there too long.  I wanted to prevent
hitting <PA1> putting it into CP READ.  OPTION CONCEAL might be a too
powerful hammer.

-----Original Message-----
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On
Behalf Of David Boyes
Sent: Monday, April 14, 2008 10:54 AM
To: [email protected]
Subject: Re: OPTION CONCEAL and z/Linux Guests


> I wondered who would be the first to ask that.  I does not prevent one

> from going into CP READ.  OPTION CONCEAL does add more protection.

OTOH, do you REALLY want a Linux virtual machine to reIPL if you somehow
manage to generate a CP READ? Seems to be going direct to the nuclear
option somehow.
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